Best Steam Includes Source SDK Games
| Name | Release Date | Current Players | All-Time Peak | Rating | |
|---|---|---|---|---|---|
|
Garry's Mod | 29 Nov, 2006 | 23 277 | 73 863 | 96.10 |
|
Left 4 Dead 2 | 16 Nov, 2009 | 23 207 | 162 399 | 96.78 |
|
Counter-Strike: Source | 1 Nov, 2004 | 17 982 | 100 056 | 95.06 |
|
Half-Life 2 | 16 Nov, 2004 | 2 132 | 64 085 | 96.46 |
|
Team Fortress 2 Classic | 2025 | 2 081 | 9 395 | |
|
Black Mesa | 6 Mar, 2020 | 1 024 | 7 158 | 93.89 |
|
Left 4 Dead | 17 Nov, 2008 | 577 | 30 616 | 94.66 |
|
Portal | 10 Oct, 2007 | 558 | 20 672 | 97.20 |
|
Day of Defeat: Source | 12 Jul, 2010 | 426 | 7 507 | 89.63 |
|
No More Room in Hell | 31 Oct, 2013 | 371 | 10 922 | 88.54 |
|
Half-Life 2: Deathmatch | 1 Nov, 2004 | 195 | 2 702 | 88.39 |
|
Entropy : Zero 2 | 20 Aug, 2022 | 122 | 3 751 | |
|
Astro Colony | 7 Nov, 2022 | 118 | 2 751 | 79.07 |
|
Alien Swarm: Reactive Drop | 20 Apr, 2017 | 116 | 9 335 | 92.73 |
|
Fistful of Frags | 9 May, 2014 | 114 | 3 537 | 89.61 |
|
Synergy | 3 Oct, 2008 | 107 | 2 940 | 88.30 |
|
Menace from the Deep | 2024 | 90 | 1 653 | 81.15 |
|
Kreedz Climbing | 15 Jun, 2017 | 83 | 379 | 78.17 |
|
ERA ONE | 30 Sep, 2024 | 80 | 934 | |
|
Pug'llector | 30 Jul, 2024 | 76 | 918 |